diff --git a/postmark.cabal b/postmark.cabal
--- a/postmark.cabal
+++ b/postmark.cabal
@@ -1,5 +1,5 @@
 Name:               postmark
-Version:            0.2.3
+Version:            0.2.5
 License:            BSD3
 License-File:       LICENSE
 Author:             Mark Hibberd <mark@hibberd.id.au>
@@ -29,7 +29,7 @@
 Library
   Build-Depends:
                     base                            >= 3 && < 5
-                    , aeson                         >= 0.6 && < 1.3
+                    , aeson                         >= 0.6 && < 1.4
                     , attoparsec                    >= 0.10 && < 0.14
                     , bytestring                    >= 0.9 && < 0.11
                     , containers                    >= 0.4 && < 0.6
@@ -64,7 +64,7 @@
 
     ghc-options:   -Wall -threaded -O2
     main-is:           ../demo/demo.hs
-    hs-source-dirs:    dist demo
+    hs-source-dirs:    demo
     build-depends:     base
                      , postmark
                      , text